Removing GraphicsContext from ImageBuffer

Source/platform/graphics/GraphicsContext.h

Index: Source/platform/graphics/GraphicsContext.h
diff --git a/Source/platform/graphics/GraphicsContext.h b/Source/platform/graphics/GraphicsContext.h
index da04802e1c85b82768c8b6c6d0a09e46e40c50ca..886e7ed1dfa0aa621b19d4da871d8a2f8452fff2 100644
--- a/Source/platform/graphics/GraphicsContext.h
+++ b/Source/platform/graphics/GraphicsContext.h
@@ -152,9 +152,6 @@ public:
     bool printing() const { return m_printing; }
     void setPrinting(bool printing) { m_printing = printing; }
 
-    bool isAccelerated() const { return m_accelerated; }
-    void setAccelerated(bool accelerated) { m_accelerated = accelerated; }
-
     SkColorFilter* colorFilter() const;
     void setColorFilter(ColorFilter);
     // ---------- End state management methods -----------------
@@ -403,7 +400,6 @@ private:
 
     float m_deviceScaleFactor;
 
-    unsigned m_accelerated : 1;
     unsigned m_printing : 1;
 };